首页|高温超导直线同步电机电磁力仿真与实验研究

高温超导直线同步电机电磁力仿真与实验研究

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无铁芯超导直线同步电机(superconducting linear synchronous motor,SLSM)具有推力密度高、工作气隙大等优势,是超导磁浮列车的动力核心.由于会不可避免地受到弯道、道岔、横风和电源谐波等因素的影响,磁浮列车在运行过程中将发生多自由度运动,使电机次级姿态发生滚转或偏移,致使超导直线电机的电磁力性能发生改变,进而影响列车的运行稳定性.针对多变电机次级姿态下高温超导直线同步电机的三维力特性展开研究,首先分析悬浮车体多自由度运动对直线电机次级姿态的影响,并建立计算 SLSM 三维电磁力的有限元模型;其次,通过搭建超导同步直线电机样机,实验验证模型的有效性;最后,基于该模型研究无铁芯 SLSM 次级在发生横向偏移、法向偏移、侧滚、俯仰以及偏航条件下的三维电磁力输出特性及其变化规律,为超导磁浮列车运行性能优化提供了理论依据.
Simulation and Experimental Study on Electromagnetic Forces Characteristic of High Temperature Superconducting Linear Motor
The superconducting linear synchronous motor(SLSM)have the advantages of high thrust density and large air gap,which makes it the core power of high-speed maglev trains.However,due to curves,switchbacks,crosswinds and power harmonics,the magnetic levitation vehicle body undergoes multi-degree-of-freedom movements,which cause the motor secondary to rotate or shift,resulting in changes in the magnetic field distribution of the motor air gap and ultimately in the electromagnetic characteristics of the motor.In this paper,the effect of multi-degree-of-freedom motion on the motor secondary attitude is first analyzed.A finite element model for SLSM three-dimensional electromagnetic force calculation is established.Then,the validity of the model is verified by measuring forces of a superconducting synchronous linear motor prototype under multiple attitudes.Finally,the three-dimensional electromagnetic forces characteristics under the lateral offset,normal offset,roll,pitch,and yaw conditions are investigated.This paper provides a theoretical reference for the optimization of the operational performance of electric suspension trains.

superconducting linear motorsupercon-ducting electrodynamic suspensionfinite element simulationforce characteristic

李婧、徐佳明、刘康、罗俊、赵正伟、龚天勇、马光同

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牵引动力国家重点实验室(西南交通大学),四川省 成都市 610031

超导直线电机 超导电动悬浮 有限元仿真 力学特性

国家自然科学基金国家自然科学基金国家自然科学基金四川省自然科学基金面上项目中央高校基本科研业务费专项

5227701852107058520370082022NSFSC04472682022ZTPY055

2024

中国电机工程学报
中国电机工程学会

中国电机工程学报

CSTPCD北大核心
影响因子:2.712
ISSN:0258-8013
年,卷(期):2024.44(11)
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